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' J; M. HAMMITT& H. T. MILLER;

PLOW CARRIAGE.

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JAMES M. HAMMITT AND HENRY r. MILLER, OF TOLEDO, IOWA.

letters Patent No. 60,721, dated January 1, 1867.

IMPROVEMENT IN PLOUGH GARRIAGES.

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TO ALL WHOM IT MAY CONCERN:

Be it known that we, JAMES M. HAMMITT and HENRY T hIILLER, of Toledo, in the county of Tama, and tate of Iowa, have invented a new and valuable improvement in Carriages for Ploughs; and wedo hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

The object of our invention is to provide a carriage for ploughs that shall be more cheap and simple in construction, and more durable and eflieient in operation, than any other heretofore devised fortha'tpurpose. To this end we construct a carriage with two wheels, an axle-tree, and tongue, as shown on Figure 2 of the drawings.

We attach a frame to the axle-tree and tongue, as shown on fig. 2, having four upright posts made secure in two side pieces, and united at their upper ends by cross-beams, as thereon represented. A lateral beam unites these two cross-beams at their centres. It is marked B on the drawings, and'forms the support for the drivers scen c. We also construct a tool-box, D, by fastening slats to the outer and inner sides of the right-hand upright posts of the carriage, and fitting a suitable bottom therein. Letter Dis a stationary bar, attached firmly to the axle-tree and tongue of the carriage. Letter E is a lever, extending from a point forward of the front end'of the frame to the rear thereof. It is attached to the lateral beam B by a swing, as shown at F on Figure 1. Letter G is a metallic spring, extending from the stationary bar D to a point immediately forward of the drivers seat, where it rests against the lower side of the lever 'E. Letter H .is a swinging beam extending I from the rear end of lever E downward to a point about a foot, more or less, below the axle-tree. It is attached to lever E by a bolt, on which it swings, and is united with the stationary bar 1) by a suitable chain. The lower end of this swinging lever is slotted to afi'ord convenient means of attachment to the beam of the plough. Letter K is a ratchet, adjusted as shown on the drawing, fig. 1. The lower end is fastened to the tongue of the carriage, and it is constructed in a circular fornnlas represented, to conform to the movements, up or down, of the lever E. It passes through a mortise or slot in said lever, in which it works. Passing through an opening on the upper side of lever E is the pawl L. This pawl works in the ratchet K, as shown, and is moved and adjusted at the will of the driver by means of the handle and spring M.

Our device is operated by adjusting the pawl M in the teeth of the ratchet K by moving the handle and spring M inthc manner desired. By such adjustment the depth of the furrow is easily regulated at the will of the operator.

What we claim as our invention, and desire to secure by Letters Patent, is-- A plough carriage having bar 1), spring G, lover E, swing F, swinging lever H, ratchet K, pawl L, and handle and spring M, adjusted, combined, and arranged substantially as herein specified.

JAMES M. HAMMITT,

HENRY T. MILLER.

W itncsscs:

BENJAMIN F. HAMMITT, JNO. H. Hnmmrr. 

